Window-ventilator.



M. McKINZIE.

WINDOW VENTILATOR.

APPLICATION FILED NOV. 7, 1914 Patented- Oct. 26, 1915.

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MORTIMER McKINZIE, or BROOKLYN; NEW roan, rassrc'ivoia ro wILraIn uonrncrtorr, or new roan, N. Y.

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Patented oer. a, 1915.

v, Application filed November 7, 1914}, Serial No. 870,820.

To all whom it may concern: I

Be it known that I, MORTIMER MGKINZIE,

a citizen of the United States, resident of Brooklyn, in the county of Kings and State of New York, have made a certain new and useful Invention in Window-Ventilators; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the invention, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 is a central vertical section of the invention as applied, the section being taken on line 11, Fig. 2, the deflector strip being removed. Fig. 2 is a section on line 22 -Fig. 1, with the deflector strips in place.

Fig. 3 is a perspective view of the invention taken from the front, the support being removed. Fig. 4 is a similar view taken from the rear, the support and the deflector strips carried thereby being removed.

The invention has relation to window ventilators, designed particularly for use with railway cars, and it consists in the novel construction and combinations of parts, as hereinafter set forth.

In the accompanying drawings, illustrating the invention, the numeral 2 designates a supporting frame, usually an oblong wooden strip designed to be placed and held between the window sash and the casing. In this frame is located an opening 3, having usually a screen cover 3, and communicating at the inside with the interior of the car and at the outside with a compartment 4 of a casing 5, attached to the outside of the frame strip. This casing, of metal preferably, is usually provided with closed or solid top and bottom 6, 6, a closed front or outside wall 7 and angular perforated or screen lateral walls 8, 8, arranged at angles of about forty-five degrees and converging outwardly toward said front wall. Within the compartment of the casing is mounted a vertical fan 9, having radial blades 10, said fan being placed opposite the opening 3 of the frame strip, centrally of the casing compartment.

In movement of the car, air passes through the perforated lateral walls 8, 8, and acts to set the fan in rapid rotation, whereby the contaminated or impure air, and smoke, (if there be any) will be sucked through the opening 3 into the compartment 4E, and from said compartment blown through one of the lateral walls 8, 8', depending upon the direction of movement of the car. In the application of the device to the window of a building, the wind, passing through the perforated lateral walls, causes the fan to turn and accomplishes the same result.

In order that the workin of the fan shall be noiseless, and to reduce i'riction, it is preferred that the journal bearings for the fan shaft shall be glass bearings, formed of glass plates 11, 11, having each a sheet metal cover 12, the cover being perforated at 13 to admit the ournal ends of the fan shaft to the glass. The fan being light in weight, there is very little wear upon the glass bearings or upon the ends of the shaft. In placing the fan in position, the fan shaft is sprung to place in the perforations of the cover plates of the glass bearings, the top and bot tom walls of the sheet metal casing being sufficiently elastic. The fan is as readily sprung out of place, in case repair or subtitution is needed.

In the use of this device, which can be quickly and readily applied to a window, impure air and smoke will be thoroughly cleared from the interior of the car or room. Deflector strips 14, 1e are preferably employed, said stips having, inclined sides 15, 15, projecting outwardly to deflect the air current passing through the perforated walls 8, 8 away from the inner blades of the fan. These deflectors will also, in the case of a head-on wind, tend to deflect the same away from the central opening 3, and avoid driving smoke and contaminated air back into the room.

What I claim is:

1. In a window ventilator, a vertical support having a central opening, a hollow casing attached to the outside of said support and having outwardly converging perforated lateral walls, and angular deflector strips having outwardly converging portions located adjacent to said perforated lateral walls of the casing and opposite inwardly converging portions, both portions of each deflector being attached at their inner ends to said support.

2, In a window ventilator, a vertical support having a central opening, a hollow casing attached to the outside of said support and having outwardly converging perforated lateral walls, and a vertical front wall parallel to said support, and angular deflector strips having outwardly converging portions located adjacent to said perforated lateral walls of the casing and opposite inwardly converging portions, both portions of each deflector being attached at their in- 10 ner ends to said support.

In testimony whereof I aflix my signature in presence of two Witnesses.

MORTIMER MOKINZIE.

Witnesses:

LOUIS 12mm, GLENADEN B. PURLs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

